Research on Flow Behavior of Advanced High Strength Steel at Elevated Temperature
Tensile experiments were carried out on advanced high strength steel (AHSS) by the test machine Gleeble3500,under the temperature ranging from 650℃ to 850℃ and the strain rate of 0.1/s~5/s,and the corresponding stress-strain curves were obtained.The peak stress level decreases with the increasing of deformation temperature or the decreasing of strain rate,which can be represented by a Zener–Hollomon parameter in a linear equation.A revised model describing the relationships between the peak stress,strain rate and temperature of advanced high strength steel at elevated temperatures was proposed by compensation of strain and strain rate.The comparison of the predicted and experimental results of stress–strain curve can prove the good predictive power of the model,the Adj.R-Square between the peak stress and the linear equation was reached to 0.97.
Advanced High Strength Steel (AHSS) Flow behavior High temperature Zener-Hollomon parameter
Chengxi Lei Junjia Cui Zhongwen Xing Hao Zhao
School of Mechatronic Engineering, Harbin Institute of Technology, Harbin, China School of Material Science and Engineering, Harbin Institute of Technology, Harbin, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
498-503
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）